The GBD12D-1 Sinker Rock Drill (also known as "Perforadora Sinker" in Spanish) is a 20-lb class lightweight handheld pneumatic rock drill specially designed to be the top choice when portability is key. It comes with a D-type handle for easy horizontal drilling in tight spaces. It has a high impact rate of 2580 BPM and a high penetration rate. It is ideal for horizontal drilling, anchor drilling, wedge drilling, plug hole drilling, and drilling in concrete.